5-(Chloromethyl)-3-(fluoromethyl)-4,5-dihydroisoxazole CAS 1627893-47-3
| CAS No. | 1627893-47-3 |
| Molecular Formula | C5H7ClFNO |
| Molecular Weight | 151.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
5-(Chloromethyl)-3-(fluoromethyl)-4,5-dihydroisoxazole (CAS 1627893-47-3) is a high-purity analytical reference standard with the molecular formula C5H7ClFNO and a molecular weight of 151.57 g/mol.
Based on its molecular formula C5H7ClFNO, 5-(Chloromethyl)-3-(fluoromethyl)-4,5-dihydroisoxazole contains an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 151.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 5-(Chloromethyl)-3-(fluoromethyl)-4,5-dihydroisoxazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H7ClFNO |
| Molecular Weight | 151.57 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
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